{
  "page": "compare",
  "query": {
    "a": "FSTZX",
    "b": "TIPX"
  },
  "retrieved_at": "2026-07-07T13:07:54+00:00",
  "disclaimer": "Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them.",
  "attribution": "Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC.",
  "terms": {
    "notice": "Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed.",
    "url": "https://fundwatcher.app/terms/"
  },
  "fund_a": {
    "name": "Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund",
    "ticker": "FSTZX",
    "slug": "FSTZX",
    "series_id": "S000072688",
    "html_url": "https://fundwatcher.app/funds/FSTZX/"
  },
  "fund_b": {
    "name": "State Street(R) SPDR(R) Bloomberg 1-10 Year TIPS ETF",
    "ticker": "TIPX",
    "slug": "TIPX",
    "series_id": "S000040742",
    "html_url": "https://fundwatcher.app/funds/TIPX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.6209535310137935241584281728",
    "coverage_b_by_a": "0.6209535310137935241584281727",
    "shared_count": 20,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "U.S. Treasury Notes",
        "value": "530029227.12",
        "weight": "0.05464856",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "512805042.52",
        "weight": "0.05287267",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "493243271.69",
        "weight": "0.05085575",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
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        "weight": "0.05062157",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "485479171.55",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
        "value": "479180468.53",
        "weight": "0.04940581",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "472850048.87",
        "weight": "0.04875311",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
        "value": "455518087.53",
        "weight": "0.04696611",
        "shared": true
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "454725504.32",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "441857930.71",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026",
        "value": "430348237.98",
        "weight": "0.04437097",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "423520378.69",
        "weight": "0.04366699",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "422963909.83",
        "weight": "0.04360961",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "408802239.76",
        "weight": "0.04214948",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  07/15/2026",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "314978217.37",
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        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "287054110.59",
        "weight": "0.02959666",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "258517173.25",
        "weight": "0.02665436",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27",
        "value": "238183971.19",
        "weight": "0.02455791",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "193518811.18",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "170846876.65",
        "weight": "0.01761513",
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      },
      {
        "name": "Fidelity Cash Central Fund",
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    ],
    "b_top": [
      {
        "name": "U.S. Treasury Notes",
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        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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        "weight": "0.04154730",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "76035285.67",
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        "shared": false
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "73635293.10",
        "weight": "0.03920947",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "73474919.27",
        "weight": "0.03912407",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
        "value": "73370954.69",
        "weight": "0.03906871",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
        "value": "70009120.70",
        "weight": "0.03727860",
        "shared": false
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "67128924.47",
        "weight": "0.03574495",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "66518830.38",
        "weight": "0.03542008",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "66425544.35",
        "weight": "0.03537041",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
        "value": "66239653.44",
        "weight": "0.03527142",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
        "value": "66215779.17",
        "weight": "0.03525871",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
        "value": "64537072.35",
        "weight": "0.03436483",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
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      {
        "name": "U.S. Treasury Notes",
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        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "63384643.38",
        "weight": "0.03375118",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
        "value": "63078487.00",
        "weight": "0.03358816",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
        "value": "61886956.39",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
        "value": "61169442.73",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "60945105.45",
        "weight": "0.03245217",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "59363054.71",
        "weight": "0.03160976",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "57032383.76",
        "weight": "0.03036872",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
        "value": "56993554.70",
        "weight": "0.03034804",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "55732972.35",
        "weight": "0.02967681",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "54877771.98",
        "weight": "0.02922143",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "48163132.34",
        "weight": "0.02564600",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "31735522.65",
        "weight": "0.01689860",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
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        "weight": "0.01614897",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "30071659.70",
        "weight": "0.01601262",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "18873770.38",
        "weight": "0.01004994",
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      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "8891250.80",
        "weight": "0.00473443",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-003404",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226003404/0000035402-26-003404-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055574",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1064642/000141036826055574/0001410368-26-055574-index.htm"
    }
  ]
}